Yes! Cactus is optimized for mobile CPU inference and we're finishing internal testing of hybrid kernels that use the NPU, as well other chips.

We don't advise using GPUs on smartphones, since they're very energy-inefficient. Mobile GPU inference is actually the main driver behind the stereotype that "mobile inference drains your battery and heats up your phone".

Wrt to your last question – the short answer is yes, we'll have multimodal support. We currently support voice transcription and image understanding. We'll be expanding these capabilities to add more models, voice synthesis, and much more.

Very exciting, thanks!